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Lawsonite
Lawsonite

Andalusite
Andalusite



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Lawsonite
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Andalusite

Lawsonite and Andalusite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.09
Uneven
Perfect on {100} and {010}, imperfect on {101}
8
CaAl2Si2O7(OH)2.H2O
 
-
-
-
3.05-3.21
Uneven, Subconchoidal, Splintery
Good on {110}, poor on {100}
7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Lawsonite and Andalusite Chemical Formula

While comparing Lawsonite and Andalusite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Lawsonite and Andalusite chemical formula.

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Lawsonite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite Vs Andalusite during the identification of gemstone. Specific gravity of Lawsonite is whereas that of Andalusite is .